Finding the Fourth Proportional to 113,069.31, 156,048.08 and 64,675.71

Step by Step Solution

1. Step 1: Write the proportion equation
   113,069.31 : 156,048.08 = 64,675.71 : x
2. Step 2: Convert to fraction form
   113,069.31/156,048.08 = 64,675.71/x
3. Step 3: Cross multiply
   113,069.31x = 156,048.08 × 64,675.71
4. Step 4: Simplify right side
   113,069.31x = 10,092,520,044.76
5. Step 5: Solve for x
   x = 10,092,520,044.76/113,069.31
6. Step 6: Final answer
   x = 89,259.59