Finding the Fourth Proportional to 61,499.84, 84,870.07 and 34,642.78

Step by Step Solution

1. Step 1: Write the proportion equation
   61,499.84 : 84,870.07 = 34,642.78 : x
2. Step 2: Convert to fraction form
   61,499.84/84,870.07 = 34,642.78/x
3. Step 3: Cross multiply
   61,499.84x = 84,870.07 × 34,642.78
4. Step 4: Simplify right side
   61,499.84x = 2,940,134,864.81
5. Step 5: Solve for x
   x = 2,940,134,864.81/61,499.84
6. Step 6: Final answer
   x = 47,807.20