Finding the Fourth Proportional to 12,924,298.80, 17,834,804.64 and 7,123,062.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,924,298.80 : 17,834,804.64 = 7,123,062.72 : x
2. Step 2: Convert to fraction form
   12,924,298.80/17,834,804.64 = 7,123,062.72/x
3. Step 3: Cross multiply
   12,924,298.80x = 17,834,804.64 × 7,123,062.72
4. Step 4: Simplify right side
   12,924,298.80x = 127,038,432,049,667.02
5. Step 5: Solve for x
   x = 127,038,432,049,667.02/12,924,298.80
6. Step 6: Final answer
   x = 9,829,425.49