Finding the Fourth Proportional to 133,061.60, 199,649.10 and 69,930.20

Step by Step Solution

1. Step 1: Write the proportion equation
   133,061.60 : 199,649.10 = 69,930.20 : x
2. Step 2: Convert to fraction form
   133,061.60/199,649.10 = 69,930.20/x
3. Step 3: Cross multiply
   133,061.60x = 199,649.10 × 69,930.20
4. Step 4: Simplify right side
   133,061.60x = 13,961,501,492.82
5. Step 5: Solve for x
   x = 13,961,501,492.82/133,061.60
6. Step 6: Final answer
   x = 104,925.10