Finding the Fourth Proportional to 89,753.34, 134,654.95 and 39,156.78

Step by Step Solution

1. Step 1: Write the proportion equation
   89,753.34 : 134,654.95 = 39,156.78 : x
2. Step 2: Convert to fraction form
   89,753.34/134,654.95 = 39,156.78/x
3. Step 3: Cross multiply
   89,753.34x = 134,654.95 × 39,156.78
4. Step 4: Simplify right side
   89,753.34x = 5,272,654,253.06
5. Step 5: Solve for x
   x = 5,272,654,253.06/89,753.34
6. Step 6: Final answer
   x = 58,746.05