Finding the Fourth Proportional to 83,784.08, 115,609.14 and 49,779.98

Step by Step Solution

1. Step 1: Write the proportion equation
   83,784.08 : 115,609.14 = 49,779.98 : x
2. Step 2: Convert to fraction form
   83,784.08/115,609.14 = 49,779.98/x
3. Step 3: Cross multiply
   83,784.08x = 115,609.14 × 49,779.98
4. Step 4: Simplify right side
   83,784.08x = 5,755,020,677.02
5. Step 5: Solve for x
   x = 5,755,020,677.02/83,784.08
6. Step 6: Final answer
   x = 68,688.71