Finding the Fourth Proportional to 13,157,359.68, 19,753,944.16 and 7,404,157.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,157,359.68 : 19,753,944.16 = 7,404,157.76 : x
2. Step 2: Convert to fraction form
   13,157,359.68/19,753,944.16 = 7,404,157.76/x
3. Step 3: Cross multiply
   13,157,359.68x = 19,753,944.16 × 7,404,157.76
4. Step 4: Simplify right side
   13,157,359.68x = 146,261,318,942,870.69
5. Step 5: Solve for x
   x = 146,261,318,942,870.69/13,157,359.68
6. Step 6: Final answer
   x = 11,116,312.28