Finding the Fourth Proportional to 62,781.31, 86,637.95 and 34,100.74

Step by Step Solution

1. Step 1: Write the proportion equation
   62,781.31 : 86,637.95 = 34,100.74 : x
2. Step 2: Convert to fraction form
   62,781.31/86,637.95 = 34,100.74/x
3. Step 3: Cross multiply
   62,781.31x = 86,637.95 × 34,100.74
4. Step 4: Simplify right side
   62,781.31x = 2,954,417,773.89
5. Step 5: Solve for x
   x = 2,954,417,773.89/62,781.31
6. Step 6: Final answer
   x = 47,058.88