Finding the Fourth Proportional to 62,209, 93,143.40 and 43,507.72

Step by Step Solution

1. Step 1: Write the proportion equation
   62,209 : 93,143.40 = 43,507.72 : x
2. Step 2: Convert to fraction form
   62,209/93,143.40 = 43,507.72/x
3. Step 3: Cross multiply
   62,209x = 93,143.40 × 43,507.72
4. Step 4: Simplify right side
   62,209x = 4,052,456,967.05
5. Step 5: Solve for x
   x = 4,052,456,967.05/62,209
6. Step 6: Final answer
   x = 65,142.62