Finding the Fourth Proportional to 5,642.42, 7,788.72 and 5,051.93

Step by Step Solution

1. Step 1: Write the proportion equation
   5,642.42 : 7,788.72 = 5,051.93 : x
2. Step 2: Convert to fraction form
   5,642.42/7,788.72 = 5,051.93/x
3. Step 3: Cross multiply
   5,642.42x = 7,788.72 × 5,051.93
4. Step 4: Simplify right side
   5,642.42x = 39,348,068.23
5. Step 5: Solve for x
   x = 39,348,068.23/5,642.42
6. Step 6: Final answer
   x = 6,973.62