Finding the Fourth Proportional to 56,894,642.69, 78,514,802.33 and 30,789,153.59

Step by Step Solution

1. Step 1: Write the proportion equation
   56,894,642.69 : 78,514,802.33 = 30,789,153.59 : x
2. Step 2: Convert to fraction form
   56,894,642.69/78,514,802.33 = 30,789,153.59/x
3. Step 3: Cross multiply
   56,894,642.69x = 78,514,802.33 × 30,789,153.59
4. Step 4: Simplify right side
   56,894,642.69x = 2,417,404,307,480,340
5. Step 5: Solve for x
   x = 2,417,404,307,480,340/56,894,642.69
6. Step 6: Final answer
   x = 42,489,137.70