Finding the Fourth Proportional to 149,870.60, 224,892.30 and 56,443.40

Step by Step Solution

1. Step 1: Write the proportion equation
   149,870.60 : 224,892.30 = 56,443.40 : x
2. Step 2: Convert to fraction form
   149,870.60/224,892.30 = 56,443.40/x
3. Step 3: Cross multiply
   149,870.60x = 224,892.30 × 56,443.40
4. Step 4: Simplify right side
   149,870.60x = 12,693,686,045.82
5. Step 5: Solve for x
   x = 12,693,686,045.82/149,870.60
6. Step 6: Final answer
   x = 84,697.64