Finding the Fourth Proportional to 99,709.02, 137,460.63 and 79,633.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,709.02 : 137,460.63 = 79,633.50 : x
2. Step 2: Convert to fraction form
   99,709.02/137,460.63 = 79,633.50/x
3. Step 3: Cross multiply
   99,709.02x = 137,460.63 × 79,633.50
4. Step 4: Simplify right side
   99,709.02x = 10,946,471,079.11
5. Step 5: Solve for x
   x = 10,946,471,079.11/99,709.02
6. Step 6: Final answer
   x = 109,784.16