Finding the Fourth Proportional to 432,309,085.91, 648,503,492.86 and 141,177,734.49

Step by Step Solution

1. Step 1: Write the proportion equation
   432,309,085.91 : 648,503,492.86 = 141,177,734.49 : x
2. Step 2: Convert to fraction form
   432,309,085.91/648,503,492.86 = 141,177,734.49/x
3. Step 3: Cross multiply
   432,309,085.91x = 648,503,492.86 × 141,177,734.49
4. Step 4: Simplify right side
   432,309,085.91x = 91,554,253,933,435,056
5. Step 5: Solve for x
   x = 91,554,253,933,435,056/432,309,085.91
6. Step 6: Final answer
   x = 211,779,619.99