Finding the Fourth Proportional to 56,502.50, 77,973.38 and 31,009.02

Step by Step Solution

1. Step 1: Write the proportion equation
   56,502.50 : 77,973.38 = 31,009.02 : x
2. Step 2: Convert to fraction form
   56,502.50/77,973.38 = 31,009.02/x
3. Step 3: Cross multiply
   56,502.50x = 77,973.38 × 31,009.02
4. Step 4: Simplify right side
   56,502.50x = 2,417,878,099.89
5. Step 5: Solve for x
   x = 2,417,878,099.89/56,502.50
6. Step 6: Final answer
   x = 42,792.41