Finding the Fourth Proportional to 107,437.59, 161,100.70 and 56,864.03

Step by Step Solution

1. Step 1: Write the proportion equation
   107,437.59 : 161,100.70 = 56,864.03 : x
2. Step 2: Convert to fraction form
   107,437.59/161,100.70 = 56,864.03/x
3. Step 3: Cross multiply
   107,437.59x = 161,100.70 × 56,864.03
4. Step 4: Simplify right side
   107,437.59x = 9,160,834,090.16
5. Step 5: Solve for x
   x = 9,160,834,090.16/107,437.59
6. Step 6: Final answer
   x = 85,266.56