Finding the Fourth Proportional to 378,550,412.48, 521,926,222.56 and 315,916,598.72

Step by Step Solution

1. Step 1: Write the proportion equation
   378,550,412.48 : 521,926,222.56 = 315,916,598.72 : x
2. Step 2: Convert to fraction form
   378,550,412.48/521,926,222.56 = 315,916,598.72/x
3. Step 3: Cross multiply
   378,550,412.48x = 521,926,222.56 × 315,916,598.72
4. Step 4: Simplify right side
   378,550,412.48x = 164,885,157,013,932,960
5. Step 5: Solve for x
   x = 164,885,157,013,932,960/378,550,412.48
6. Step 6: Final answer
   x = 435,569,878.09