Finding the Fourth Proportional to 113,769.56, 156,970.50 and 73,485.02

Step by Step Solution

1. Step 1: Write the proportion equation
   113,769.56 : 156,970.50 = 73,485.02 : x
2. Step 2: Convert to fraction form
   113,769.56/156,970.50 = 73,485.02/x
3. Step 3: Cross multiply
   113,769.56x = 156,970.50 × 73,485.02
4. Step 4: Simplify right side
   113,769.56x = 11,534,980,331.91
5. Step 5: Solve for x
   x = 11,534,980,331.91/113,769.56
6. Step 6: Final answer
   x = 101,388.99