Finding the Fourth Proportional to 12,973,691.94, 17,902,925.42 and 7,172,127.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,973,691.94 : 17,902,925.42 = 7,172,127.69 : x
2. Step 2: Convert to fraction form
   12,973,691.94/17,902,925.42 = 7,172,127.69/x
3. Step 3: Cross multiply
   12,973,691.94x = 17,902,925.42 × 7,172,127.69
4. Step 4: Simplify right side
   12,973,691.94x = 128,402,067,136,786.91
5. Step 5: Solve for x
   x = 128,402,067,136,786.91/12,973,691.94
6. Step 6: Final answer
   x = 9,897,110.84