Finding the Fourth Proportional to 10,138,388.15, 13,990,915.76 and 5,492,261.77

Step by Step Solution

1. Step 1: Write the proportion equation
   10,138,388.15 : 13,990,915.76 = 5,492,261.77 : x
2. Step 2: Convert to fraction form
   10,138,388.15/13,990,915.76 = 5,492,261.77/x
3. Step 3: Cross multiply
   10,138,388.15x = 13,990,915.76 × 5,492,261.77
4. Step 4: Simplify right side
   10,138,388.15x = 76,841,771,693,499.91
5. Step 5: Solve for x
   x = 76,841,771,693,499.91/10,138,388.15
6. Step 6: Final answer
   x = 7,579,288.79