Finding the Fourth Proportional to 61,147, 84,415.67 and 47,686.02

Step by Step Solution

1. Step 1: Write the proportion equation
   61,147 : 84,415.67 = 47,686.02 : x
2. Step 2: Convert to fraction form
   61,147/84,415.67 = 47,686.02/x
3. Step 3: Cross multiply
   61,147x = 84,415.67 × 47,686.02
4. Step 4: Simplify right side
   61,147x = 4,025,447,327.93
5. Step 5: Solve for x
   x = 4,025,447,327.93/61,147
6. Step 6: Final answer
   x = 65,832.29