Finding the Fourth Proportional to 7,345,109.55, 10,291,551.45 and 7,345,109.55

Step by Step Solution

1. Step 1: Write the proportion equation
   7,345,109.55 : 10,291,551.45 = 7,345,109.55 : x
2. Step 2: Convert to fraction form
   7,345,109.55/10,291,551.45 = 7,345,109.55/x
3. Step 3: Cross multiply
   7,345,109.55x = 10,291,551.45 × 7,345,109.55
4. Step 4: Simplify right side
   7,345,109.55x = 75,592,572,839,711.34
5. Step 5: Solve for x
   x = 75,592,572,839,711.34/7,345,109.55
6. Step 6: Final answer
   x = 10,291,551.45