Finding the Fourth Proportional to 99,152.18, 136,830.18 and 53,830.22

Step by Step Solution

1. Step 1: Write the proportion equation
   99,152.18 : 136,830.18 = 53,830.22 : x
2. Step 2: Convert to fraction form
   99,152.18/136,830.18 = 53,830.22/x
3. Step 3: Cross multiply
   99,152.18x = 136,830.18 × 53,830.22
4. Step 4: Simplify right side
   99,152.18x = 7,365,598,692.04
5. Step 5: Solve for x
   x = 7,365,598,692.04/99,152.18
6. Step 6: Final answer
   x = 74,285.80