Finding the Fourth Proportional to 113,590.42, 156,781.50 and 70,602.38

Step by Step Solution

1. Step 1: Write the proportion equation
   113,590.42 : 156,781.50 = 70,602.38 : x
2. Step 2: Convert to fraction form
   113,590.42/156,781.50 = 70,602.38/x
3. Step 3: Cross multiply
   113,590.42x = 156,781.50 × 70,602.38
4. Step 4: Simplify right side
   113,590.42x = 11,069,146,579.23
5. Step 5: Solve for x
   x = 11,069,146,579.23/113,590.42
6. Step 6: Final answer
   x = 97,447.89