Finding the Fourth Proportional to 149,870.10, 224,891.55 and 56,442.90

Step by Step Solution

1. Step 1: Write the proportion equation
   149,870.10 : 224,891.55 = 56,442.90 : x
2. Step 2: Convert to fraction form
   149,870.10/224,891.55 = 56,442.90/x
3. Step 3: Cross multiply
   149,870.10x = 224,891.55 × 56,442.90
4. Step 4: Simplify right side
   149,870.10x = 12,693,531,267.50
5. Step 5: Solve for x
   x = 12,693,531,267.50/149,870.10
6. Step 6: Final answer
   x = 84,696.89