Finding the Fourth Proportional to 12,577,877.34, 17,357,528.79 and 7,145,667.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,577,877.34 : 17,357,528.79 = 7,145,667.42 : x
2. Step 2: Convert to fraction form
   12,577,877.34/17,357,528.79 = 7,145,667.42/x
3. Step 3: Cross multiply
   12,577,877.34x = 17,357,528.79 × 7,145,667.42
4. Step 4: Simplify right side
   12,577,877.34x = 124,031,127,966,415.02
5. Step 5: Solve for x
   x = 124,031,127,966,415.02/12,577,877.34
6. Step 6: Final answer
   x = 9,861,054.02