Finding the Fourth Proportional to 12,924,300.80, 17,834,807.36 and 7,123,064.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,924,300.80 : 17,834,807.36 = 7,123,064.72 : x
2. Step 2: Convert to fraction form
   12,924,300.80/17,834,807.36 = 7,123,064.72/x
3. Step 3: Cross multiply
   12,924,300.80x = 17,834,807.36 × 7,123,064.72
4. Step 4: Simplify right side
   12,924,300.80x = 127,038,487,094,012.33
5. Step 5: Solve for x
   x = 127,038,487,094,012.33/12,924,300.80
6. Step 6: Final answer
   x = 9,829,428.23