Finding the Fourth Proportional to 13,376,079.72, 18,460,128.42 and 7,575,893.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,376,079.72 : 18,460,128.42 = 7,575,893.28 : x
2. Step 2: Convert to fraction form
   13,376,079.72/18,460,128.42 = 7,575,893.28/x
3. Step 3: Cross multiply
   13,376,079.72x = 18,460,128.42 × 7,575,893.28
4. Step 4: Simplify right side
   13,376,079.72x = 139,851,962,845,015.03
5. Step 5: Solve for x
   x = 139,851,962,845,015.03/13,376,079.72
6. Step 6: Final answer
   x = 10,455,377.49